Best IoT Visual Programming Tools 2025

Introduction

The Internet of Things (IoT) is rapidly evolving, making development tools essential for building smart applications. Visual programming tools have gained popularity as they allow developers to create IoT applications without needing extensive coding experience. These tools use a graphical interface with drag-and-drop components, making IoT development more accessible.

What is a Visual Programming Language (VPL)?

A Visual Programming Language (VPL) enables users to create programs by manipulating graphical elements instead of writing traditional text-based code. It allows developers to visually construct program logic using blocks, nodes, and flow diagrams.

The primary objectives of VPLs include:

1. Syntax Simplification – Reducing errors by replacing text-based syntax with icons, blocks, and flowcharts.
2. Enhanced Semantics – Providing built-in documentation and tooltips to explain programming functions.
3. Practical Testing – Offering real-time debugging and visualization of program execution.

List of IoT Visual Programming Tools

Below are the most reliable and widely-used IoT visual programming tools as of 2025.

1. Node-RED

Overview:

Developed by IBM, Node-RED is a flow-based programming tool widely used in IoT. It allows users to create automation workflows by connecting nodes representing hardware devices, APIs, or online services.

Key Features:

• Browser-based flow editor
• Built on Node.js with event-driven, non-blocking execution
• Supports MQTT, WebSockets, and HTTP for IoT communication
• Extensive library of community-contributed nodes

Supported Platforms:

Raspberry Pi, Arduino, ESP8266, ESP32, AWS IoT, IBM Cloud

More about Node-RED

2. Visuino

Overview:

Visuino is a powerful visual programming tool designed for Arduino development. It simplifies the coding process for beginners and supports various microcontrollers.

Key Features:

• Drag-and-drop interface for wiring components
• Supports Arduino, ESP8266, ESP32, Teensy, and other microcontrollers
• Allows real-time debugging

More about Visuino

3. XOD

Overview:

XOD is an open-source visual programming tool for microcontrollers, providing a flowchart-based interface to create IoT applications.

Key Features:

• Node-based programming model
• Open-source and extendable
• Supports Arduino and compatible boards
• Generates native C++ code for microcontrollers

More about XOD

4. Wyliodrin

Overview:

Wyliodrin is an IoT platform with a built-in visual programming IDE based on Google Blockly. It is designed for educational and industrial IoT applications.

Key Features:

• Web-based programming environment
• Supports Raspberry Pi, Intel Edison, and other IoT platforms
• Integrates with cloud services
• Allows real-time monitoring and control

More about Wyliodrin

5. Embrio

Overview:

Embrio is an innovative visual programming tool for Arduino, focusing on event-driven and parallel execution programming.

Key Features:

• Live connection to Arduino for real-time debugging
• Graphical representation of program flow
• Supports Windows, macOS, and Linux

More about Embrio

6. Google Blockly for IoT

Overview:

Google Blockly is an open-source visual programming language widely used in IoT applications. It is commonly integrated with various IoT development platforms.

Key Features:

• Drag-and-drop block-based coding
• Generates JavaScript, Python, and other programming languages
• Compatible with IoT platforms like Arduino and Raspberry Pi

More about Google Blockly

Conclusion

The visual programming tools listed above make IoT development accessible to beginners and professionals alike. They simplify complex coding tasks by providing an intuitive, graphical way to program devices. Whether you are using Arduino, ESP8266, Raspberry Pi, or industrial IoT platforms, these tools will help you accelerate your IoT projects.

Related Article: Getting Started with Node-RED